If someone posts illegal content on a website and the government shuts it down, they can post it again on a new website, and the government chases them around trying to squash it. BUT we don't shut down the world wide web because of this "flaw".

Just swap "website" for "relay" and nostr is the same model.

I don't think we should be touting that nostr "can't be censored". We should be touting that it is decentralized.